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$720+ Cheap flights from Trieste (TRS) to Chicago (CHI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — CHI
Jan 10 — Jan 171
Sat 1/10
Sat 1/17
1 adult, Economy
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Cheap flight deals from Trieste to Chicago

Best flights from Trieste to Chicago
Discover carefully curated flight deals from Trieste to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:15 amTRS - ORD
1 stop16h 05mLufthansa
Tue 2/39:50 pmORD - TRS
2 stops17h 50mLufthansa
Deal found 12/9$720
This KLM deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:35 amTRS - ORD
2 stops21h 25mKLM
Tue 2/31:57 pmORD - TRS
2 stops17h 33mKLM
Deal found 12/9$723
This ITA Airways deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:15 pmTRS - ORD
1 stop24h 55mITA Airways
Mon 4/209:20 amORD - TRS
2 stops30h 35mITA Airways
Deal found 12/9$743
This United Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:35 amTRS - ORD
1 stop13h 30mUnited Airlines
Mon 4/203:40 pmORD - TRS
1 stop11h 45mUnited Airlines
Deal found 12/9$989

Find flight deals from Trieste to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Trieste (TRS) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 11, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$720
(Cheapflightsfares)
Provider with most accurate pricing for Trieste Ronchi dei Legionari-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Trieste Ronchi dei Legionari-Chicago (CHI) flights.
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From Trieste Ronchi dei Legionari to Chicago (CHI)
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Trieste to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from Trieste to Chicago that are best for you.

Fly from

Trieste

Fly to

Chicago

Route

Depart

Return

Price

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Thu 1/29

6:15 am-3:20 pm

1 stop16h 05m

Chicago O'Hare Intl

Tue 2/3

9:50 pm-10:40 pm

2 stops17h 50m

$720

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Thu 1/29

6:35 am-9:00 pm

2 stops21h 25m

Chicago O'Hare Intl

Tue 2/3

1:57 pm-2:30 pm

2 stops17h 33m

$723

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Thu 4/16

7:15 pm-1:10 pm

1 stop24h 55m

Chicago O'Hare Intl

Mon 4/20

9:20 am-10:55 pm

2 stops30h 35m

$743

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Thu 4/16

6:35 am-1:05 pm

1 stop13h 30m

Chicago O'Hare Intl

Mon 4/20

3:40 pm-10:25 am

1 stop11h 45m

$989

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sat 1/17

11:15 am-10:05 am

2 stops53h 50m

$786

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sun 1/18

6:35 am-10:05 am

2 stops58h 30m

$856

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Mon 1/19

11:15 am-10:05 am

2 stops53h 50m

$882

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Tue 1/6

11:15 am-10:05 am

2 stops29h 50m

$1,322

TriesteChicago

TRS - ORD

TRSORD

Trieste Ronchi dei Legionari

Sat 5/30

6:35 am-1:15 pm

1 stop13h 40m

$1,647

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

  • Most accurate provider: When it comes to deals on Trieste-Chicago flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Trieste-Chicago flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Trieste-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trieste-Chicago flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Trieste-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Trieste to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Trieste with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Trieste to Chicago

What is the cheapest month to book a flight from Trieste to Chicago?

Currently, November is the cheapest month in which you can book a flight from Trieste to Chicago (average of $454). Flying from Trieste to Chicago in January is currently the most expensive (average of $767). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Trieste to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Trieste to Chicago?

    For a flight from Trieste to Chicago, you will be flying from Ronchi dei Legionari. Trieste Ronchi dei Legionari (TRS) is just 18.2 mi from the center of the city. Ronchi dei Legionari is the only Trieste airport and it handles 0 outbound flights to Chicago per day. 0 airlines have flights to Chicago from Trieste Ronchi dei Legionari on a regular basis.

  • How long is the flight from Trieste to Chicago?

    Lufthansa, KLM, and ITA Airways can get you from Trieste to Chicago in just under 16h 05m. Your travel time can differ by up to 8h 50m. The distance between Trieste and Chicago is about 4683 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Trieste to Chicago that include hotel bookings?

    Yes. In addition to deals on Trieste to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trieste to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trieste to Chicago.

  • Can I find deals for business class flights from Trieste to Chicago?

    Yes. Cheapflights offers flight deals from Trieste to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Trieste to Chicago?

    Currently, November is the cheapest month in which you can book a flight from Trieste to Chicago (average of $454). Flying from Trieste to Chicago in January is currently the most expensive (average of $767). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lansing
Merrillville
Hammond
Porter
Benton Harbor

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